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.01 General
  1. Each building shall be equipped with an egress lighting system as required by the Pennsylvania Department of Labor and Industry or other applicable code(s).
  2. Provide emergency lighting along the path of emergency egress, including the exterior of a building and ending at a public way.
  3. All emergency egress lighting (which includes stairwell lights, exit lights, selected corridor lights), fire extinguisher identification lights where required, and elevator cab lights shall operate twenty-four (24) hours a day and shall be connected to the panel board as defined in NFPA70, Article 700, for life-safety.  UL924 transfer devices are permitted to be deployed for select egress paths, classrooms, and other identified spaces and will be evaluated for off control based on the deployment by Engineering Services Electrical Group. Luminaires may also be dimmed in lieu of off where installed as part of a central system with programming capabilities, with programming to ensure the illumination level does not fall below minimum code requirements.  Refer to the Pennsylvania State University Lighting Design & Commissioning Matrix for deployment of dimming emergency lighting.  
  4. Battery type emergency lighting is not allowed without prior approval from Engineering Services Electrical Group.  Exception: Battery type emergency lighting should be provided in all interior building spaces housing the life-safety/stand-by power source (generator), or inside an exterior walk-in enclosure where deployed. Inverter based systems shall not permit dimming control output where inverter systems are approved for use by Engineering Services Electrical Group.
  5. Stairwells, lobbies, hallways and entrances shall have ample lighting to allow for night cleaning.  Wall mounted ADA compliant fixtures with integral occupancy sensors and dimming drivers shall be provided for step-dim operation.   Refer to 26 51 00 Interior Lighting for Luminaire Basis of Design. 
  6. Do not use of lamps with end-of-life protection (compact fluorescent and T5) in Normal/emergency or emergency lighting applications.  Ballasts for these lamps have “end of life” circuitry that can turn off lamps in certain power fluctuation conditions and leave the building without egress lighting until fixtures are de-energized and re-energized.  Specify these ballasts to have automatic re-strike capability.
  7. Illuminate the corridor-side elevator landing sills to 10 fc maintained (minimum).  Do not switch any luminaire required for this purpose.
  8. All lighting in the building main Electrical Room housing the main switchgear/switchboard lineup shall be connected to a normal/emergency source. Luminaries in this space shall be switched with select luminaries unswitched, operating 24x7.  Coordinate layout and switching with Engineering Services Electrical Group.
  9. Refer to the Lighting Survey requirements in 26 50 00 Lighting

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